A Chinese chip maker's shares surged 466% in their first day of trading as AI boom worm turns
Fortune The Associated Press ● Covered by 2 sources
China's biggest memory chipmaker, CXMT, just saw its shares jump 466% on debut in Shanghai. It's now worth more than $487 billion on paper, riding the global AI chip crunch.
Based on reporting by Fortune, The Associated Press — read the original for the full story.
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CXMT opened Monday on Shanghai's STAR market and did not so much rise as launch. Shares closed up 466% on their first day, instantly making ChangXin Memory Technologies the most valuable company listed on any mainland Chinese exchange, with a market cap around 3.3 trillion yuan, north of $487 billion. That number sounds staggering until you set it next to Samsung Electronics, SK Hynix and Micron, the established memory giants CXMT is still chasing.
The offering itself was no small event. CXMT raised at least $8.6 billion, priced at 8.66 yuan a share, making it mainland China's second-largest IPO ever, trailing only Agricultural Bank of China's $22.1 billion listing back in 2010. Founded in Hefei in 2016, CXMT makes DRAM chips, the workhorse memory found in everything from smartphones and PCs to AI servers and cars. Revenue for the first three months of 2026 hit 50.8 billion yuan, over $7.5 billion, a jump of more than 700% from a year earlier. That kind of growth doesn't happen by accident; it happens when the entire industry is starved for chips.
And starved it is. AI demand has triggered a global memory shortage, pushing up prices on computers and phones alike. CXMT sits at an odd intersection here: it's simultaneously a beneficiary of that shortage and, per Brookings fellow Kyle Chan, one of Beijing's best hopes for building homegrown high-bandwidth memory chips, the kind U.S. export controls currently keep out of China entirely. Whether CXMT can actually ease the wider shortage remains an open question, Chan noted.
The obstacles are real. CXMT can't access the world's best chipmaking tools because of American-led restrictions, leaving it dependent on domestic equipment makers and facing supply chain bottlenecks as it tries to scale. Counterpoint Research pegged CXMT at roughly 8% of global DRAM shipments in 2025, fourth place behind Samsung's 36%, SK Hynix's 29% and Micron's 24%. That share ticked up to about 9% in early 2026 and is forecast to reach around 11% by 2028 — respectable, but Counterpoint reckons CXMT needs at least 15% to be genuinely competitive long-term.
There's a political layer too. CXMT is among the Chinese firms the Pentagon links to the Chinese military, a designation Beijing rejects, and some U.S. lawmakers want the Trump administration to bar American firms from buying its chips outright. All of this arrives just weeks after South Korea's SK Hynix pulled off its own $26.5 billion Nasdaq IPO, a reminder that the memory chip business, usually a quiet corner of tech, has suddenly become one of the AI boom's hottest trades.
My take — AI-written commentary, not fact-checked reporting
A 466% pop on debut says more about starved investor demand and a memory shortage than it does about CXMT actually catching Samsung or SK Hynix anytime soon — Counterpoint's own numbers show the gap is still enormous, and the tool restrictions aren't going away. Washington's export controls were supposed to slow China's chip ambitions, but instead they've turned CXMT into a national champion with a captive market and a stock price to match. Everyone cheering the IPO should remember that market cap isn't market share, and 8% of global DRAM shipments doesn't rewrite the industry overnight.'
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